Statistical Social Work Study Paper/Post Week 5 BSHS

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Prepare a 10- to 15-slide Microsoft® PowerPoint® presentation on statistics and hypothesis testing. For Local Campus students, this is an oral presentation accompanied by a Microsoft®PowerPoint® presentation; for Online Campus and Directed Study students, this is a Microsoft®PowerPoint® presentation with speaker notes.

As a Learning Team, use one of the following StatCrunch data sets from MyStatsLab®:

Team B will use the Enchiladas, as described on pp. 113 and 114 of Statistics 

 

Enchiladas and sodium-revisited: Is there a relationship

between the sodium content and the cost of enchiladas?

Use software to analyze the data from Consumer

Reports (March 2000) in the following table, contained in

the "Enchiladas" file on the text CD.

                         

Brand and Type                    Cost (per serving) Sodium Content (mg)

Amy's Black Bean                   $3.03                        780

Patio Cheese                          $1.07                        1570

Banquet Cheese                     $1.28                        1370

Patio Beef                               $1.05                        1700

Banquet Beef                          $1.27                        1330

Healthy Choice Chicken         $2.34                          440

Lean Cuisine Chicken            $2.47                          520

Weight Watchers Chicken     $2.09                           660

Construct a scatterplot to show how sodium depends

on cost. Is the association positive, or negative? Do

you notice any unusual observations?  

b. What might explain the gap observed in the scatterplot?

(Hint: How do the health-oriented products

compare in sodium content to the others?)

c. Obtain the correlation, r. Interpret this value in

context

StatCrunch stated:

Cost Per serving Sodium Content (%)

Amys Black Bean $ 1.05 17.22%

Patios Cheese 1.07 15.91

Banquet Cheese 1.27 13.48

Charnito Beef 1.28 15.2

Patio Beef 1.53 13.88

Banquet Beef 2.09 6.69

Healthy Cheese Chicken 2.34 4.46

Lean Cuisine Chicken 2.47 5.27

Weight Watchers Chicken 3.03 7.9

Each Learning Team must work with a different data set, so check with the facilitator for your data set assignment. Refer to this course’s reading material and at least two scholarly sources from the University Library. Incorporate the following elements into your presentation:

· Introduction

· Introduce the Learning Team members and the data set.

· Briefly explain how the data was gathered and identify the study population.

· Descriptive Statistics

· Define descriptive statistics and list the various descriptive measures. (1 Slide)

· Explain how descriptive statistical analysis increases understanding of the data.( 1 Slide)

· Include an original graph created with StatCrunch that uses at least one descriptive statistical measure to illustrate the data set. ( 1 Slide)

· A TOTAL OF THREE SLIDES THIS SECTION

· Inferential Statistics

· Define statistical inference and include and explain at least one original inferential statistical calculation.

· Use StatCrunch to check the calculation and show the steps in your presentation.

· Explain how inferential statistical analysis increases understanding of the data.

· Null Hypothesis Testing

· Explain the purpose of null hypothesis testing and provide examples of null hypotheses that may be tested with the data set.

· Explain the logic of hypothesis testing and the role of the null hypothesis.

· Implications for Future Research

· Differentiate between descriptive and inferential statistics and how they support the human services research process.

· Provide an example of a study that is a logical follow-up to your data set that yields useful descriptive data.

· Provide an example of a study that is a logical follow-up to your data set that yields useful inferential statistics.( 1 Slide)

· Provide an example of a null hypothesis inspired by your data set that adds to the human services community’s knowledge.

· Conclusion and References

Format your presentation consistent with APA guidelines. Click the Assignment Files tab to submit your assignment.

Prepare to answer questions from your classmates and the facilitator and to discuss your presentation.